Device for filtering and purifying water.



H'. BRINCK. DEVICE FOR FILTERING AND PURiFYlNGWAI-ER.

APPLICATION FILED JULY 5. 1917- yatemedsept; 1918.

lTi

INVENTOR ATIORNEY To all whom it mag concern:

BEST AVAILABLE COPY UNITED ;-sTATEs PATENT oration.

HANS 13311103, or ms'kneELEs, CALIFORNIA, Assmnon or ONE-HALF 'ro o'r'roH. xnunenmor LOS ANGELES, camroama, AND ONE-HALF TO MRS. MARY earns,

01 SANFRANCISCO, CALIFORNIA.

DEVICE FOR FILTERING ANID PURIFYING- WATER.

Be it known that I, HANS BRINCK, a subject of the Emperor-of Germany,residing at Los Angeles, in the county of Los Angeles' and State ofCalifornia, have invented new and usefullmprovements in Devices forFiltering and Purifying Water, of

which the following is a specification.

' i My invention relates to devices for filtering and purifying waterand more particularly to devices for filtration under pressure.

' The object of this invention is to procure a quick filtration.

Another ob]ect is to procure a: quick filtration under pressure.

Another object is to provide a filter which can be cleaned by reversingthe circulation in such a manner as to allow the filtration in *themoment the circulation is again conducted in the normal direction.Another object is to provide a filter in which the filtering Settles tothe normal level after the reversing of the circulation for thecombination and arrangement of devices ing, in .which hereafter morefully described and claimed. and illustrated in the accompanying draw-Figure 1 is a vertical sectional view my device.

.my device.

' Fig.- 2 is a fragmentary vertical sectional 1 View of my device withextra filtering layers inserted.

Fig. 3 is the top view of the filter tubes in Fig. 4 .is'the top view ofone .of the extra filtering layers in my device.

Fig. 5 is a vertical. cross section through V one ofthefilter tubes. v

Similar numbers refer to similar parts throughout the several views.

the cover- 8 an air escape valve, 9 the water i wi nlet opening, and 10,11 and 12 water outlet openings. .;'A water inlet valve 13 and a isopened whi Specification of Letters Patent. Patented Sept, 1'? 1938Application filed July 5,1917. Serial No. 178,721.

waste outlet valve 14: are connected to the filter basin by a suitablefitting 15. A-

The branch pipe 21 connected to the line pipe 21 by a T and the outerend of. T 21* is closed by a cap 21'.

The drawing is made from one of a battery of filters connected to onesupply line. When only one filter is to be set an L may be'substit-utedfor the T 21*. The pipes 20 and 21,

21 and 21 serve to feed the conduits 27 and 28 from both ends. Astandpi'pe 24 is'disposed in the basin terminating with its up per endat a'suitable pointabove the filtering medium .25 and being m ountedf with its lower end on a suitable number of standards 26 seas to allowfreely communication between the standard pipe and the basin on bothends of the standard pipe. Conduits 27 and 28 are communicating with theoutlet openings 10 and 11 terminating toward the center of the basin ina communicating chamber 29. The communicating chamber 29 is mounted onthe standard pipe surrounding tli'e pipe being shut off fromcommunication with the standard pipe and the basin except through theconduits. The

conduits are provided with a suitable numher of filtertubes 30, see Fig.3. Thefilter tubes are provided with'finc slots'31 more clearly shown inthe enlargedsectional view of Fig.5. is disposed above the outletopening 12.

In operating e the waste outlet valve 14 is closed, the three valves 17,18 and 19 are also open. The filtration occurs then from theinletopening 9 through the filtering medium25, partly through theseparator 32 and the rest through the fine slots in the filter tubes 30,through the communicating A cleaning and filter separator 32 the filter.the inlet valve 13 v chamber 29 and through the pipes 20 and 21 .3

joining with the stream out etthe-fitting 23 into the outlet tube 22,which leads to a resasst AVAlLABLE COP -'A suitable number of containers33 are provided to be disposed at suitable places within the filteringmedium 25 having large communicating openings ing. medium 25 andopenings 35 for allowing 3?: for the main filter small communicating theliquid to pass through the filtering within the containers which maybeof charcoal and other similar through the is mounted close above theseparator and Icleaned, water,

mediums, while the filtering'medium in the main basin of the filter mayconsist of sand or avel. v

hen the filtering material is to be either purified or raw (preferablythe former), is admitted through the outlet .pipe 22 and forced uthrough the sand, agitating this thoroug ly and washing'out thecollected sediment through the waste ipe and valve 14:. While washing,the va ves 17-, 19 and 13 are shut ofi so as to force the water throughvalve 18, farther through the 1 filter separator 32, mainly standpipe 24as this standpipe 6'- cause the lower end of the standpipe is providedwith an enlarged opening forming a forceful jet from the separatorthrough the standpipe. through the standpipe causes a circulation of thewater through the standpipe upwardly and then back through the filteringmedium .sepaifator again through the st'andpipe. The light substancesdownwardly past the and collected sediments pass easilyout of theprevent such "water, the valve opened waste pipe with the water whilethe sand and heavy gravel settles back down in the filter basin. Thesettling sand and gravel is then always sucked again and again past theseparator by the jet forced through the -standpipe.- This washing iscontinued until the effluent runs clear.

During the washing, the filtering medium naturally settles down in thebasin in a somewhatconical form .from thestandpipe down toward the sidessidesofthe basin the layer ofthe sand would naturally be rather thin sothat unclean water might pass through the slots 31 in the filter tubes30 out of the thoroughly filtered when the filtration should be renewed18 is closed and valve 17 so as to force an even streamoi water through;all filter tubes upwardly through the sand filtering medium, agitatingthe sand evenly and thereby allowing the sand to settle in an even levelmass. This settlingof thefiltering medium is done when thefilt'eringmatenal" appears to be clear .frdm the effluent running thewater is again admitted from the top 14: and opening vcleaning thefilter, all

- for the inlet and waste outlet, from the bottom'vof the 90,

This -forcmg of the water of the basin, and near the filter withoutbeing xing a c lindrical "basin having after. the-washing. To breakingthrough of unclean.-

out clear, when and filtering renewed by closing thevalve the valves 13,18 and 19.

Havmg thus described my'invention, I w claim:

1. In a filter of the class described in com-' bination with a basinhaving an inlet openng near the upper end and an outlet openmg in thebottom, a standpipe disposed in the basin above the outlet 0 eningspaced ow the-liquid from the bottom'so asto a1 passing through thefilter to pass out of the filter below the standpipe as well as throughthe standpipe and out of the outlet opening when normally operated as afilter and also disposed to causathe liquid to pass through thestandpipeupwardly when reversed for substantially as described. v Q 7 2. A filtercomprising a basin, a cover for the basin, an air valve in the cover, awater 5 inlet and a waste outlet communicating with the top of thebasin, a bafile plate in the basln in front 'of'the inlet opening,valves a clearwater' outlet pipe leading basin, a valve in this outlet,astandpipe mounted upon legs in the filter basinand extending upwardlyfrom perforated filter-pipes mounted horizontally ih the filter andconnecting around the staridpipe, a branch ipe leading from the filterpipes to the c ear-wateroutlet pipe, and a valve in the branch pipe. 3.A closed filter basin, 3, water supply pipe leading into the top of thefilter basin, a waste pipe leadlng from the top of the filter lbasm,valves in the supply pipe and in the waste pipe, a clear water drainpipe leadin from the bottom of the filterzbasm, a stan pipe in thefilter basin and ex-tending upwardly from the 1 outlet to the drain 1ipe and spaced therefrom, perforated lter pipes mounted horizontallyin'the basin and connected to La chamber around the standipe some.distance above the bottom, a ranch outlet pipe leading from theperforated pipes through the asin tofthe clear.

water drain pipe, a valve in the drain pipe, v

and a valvein the-branchpipe. I

4. A filter of the class described compris i v a hoppe shaped ottom, anint t 'oen1ng=near the upper end, anda'suitabie numberlof outletopenings'near the lower end in the cy'1indri-- cal sides of the basin,and one outlet 0 ening'in the center of the hopper'sha edttom; aninlet-pipe," connected to t e inlet opening-and provided with an inletvalve {and a cleaning valve; an outlet pipe having connections for theseveral I outletbpenings 1n the sides as well as in he bottom-of the wthe lower outlet,

to a chamber 5 ion "sin andprovided with' a suitablev number of letconnection in the center of the hopper' 1| valves; filter pipes disposedcross-wise Withshaped bottom. in the filter connected to the outletopenings In testimony whereof I hereunto aflix my 3 the sides oi the"filter; a standplpe ensignature in'the presence of two witnesses.

5 ,larged at the-lower end disposed concentrie .callyjwithjzi the basinwith the enlarged HANS F N lower'end spa'oedfrom the lowest portion ofWitnesses: the hoppe'rehaped bottom; and a se orator Om H. KRUEGER,

lsposedebetween thgstendpipe and t emit C. MITSCHLER.

